The Aria K2 936 is a special, limited production, unique version of the Focal that comes equipped with all four K2Power drivers with the iconic “gold” driver. Currently, out of Focal’s entire range of products, with the exception of the Spectral, the 40th anniversary limited production speaker and discontinued production, only the Aria K2 936 is favorably equipped with the famous Aramid K2Power membrane horn speaker. With the advantage of super-fast, stable movement, providing outstanding mobility. To increase the “special”, Focal also put on the Aria K2 936 speaker cabinet with a premium paint coating in smoky gray, the color that represents high-performance supercars. Due to the more complex finishing requirements, this smoky gray color was previously unique to the Utopia III EVO flagship speaker line. Flax diaphragm horn loudspeakers are replaced with Focal’s special legacy – aramid fiber K2Power Driver The exterior design of the Aria K2 936 remains the same as the standard 936 model, the only difference is that all the old Flax technology drivers are replaced by the eye-catching bright yellow aramid membrane driver. If the Flax driver made of flax fiber has the advantages of rustic color, good escapement, the K2Power driver is highly appreciated for its ability to reproduce details and especially high dynamics, allowing sound performance. Optimized for any type of music. The Focal Aria K2 936 features a 6.5in K2 mid driver combined with 3 woofers with a large voice-coil design, the same material and diaphragm diameter as the mid. This K2Power driver detail has a sandwich structure sandwiched between 2 layers of aramid fiber membrane, fiberglass membrane and foam in the middle. With the advantage of stiffness, extremely low film resonance (due to being absorbed by foam), and extremely light, the K2Power driver with this golden color feature is able to reproduce extremely high details and does not add any “color”. does compared with the original signal. Tweeter TNF 1in ultra-light concave membrane The TNF tweeter has been used by Focal in many recent loudspeaker designs, which is a high-performance driver design and has the best smoothness available today in the mid-high range. This driver has a concave dome membrane structure, a combination of aluminum and magnesium. Recessed dome diaphragm allows for coil design with a smaller diameter than conventional dome diaphragm, reducing overall weight and increasing flexibility. In addition, the use of poron edging material also helps the TNF tweeter driver reduce distortion in the 2 to 3kHz frequency range, which is very sensitive to human ears. Dynamic impressively with well-balanced sound standards To assume that the Aria K2 936 is a purely upgraded version is not entirely correct. In addition to the unique K2Power driver technology, Focal had to make a lot of adjustments in the crossover and it was clear that the pair of speakers had an impressive change in performance quality. Focal Aira K2 936 received the award for audio equipment of the year 2020-2021 from Stereo + magazine The special impression of the Focal Aria K2 936 is the outstanding dynamics, we can even compare the mid-range control, bass range and response speed of these two speakers with models of double-price column speakers. money. Fast, clean and free of excess sound, delivering a crisp and speedy stage experience, these two elements make the Aria K2 936 listeners feel like they are experiencing a pair of large, driver-packed column loudspeakers. The very nice point of the Aria K2 936 is that, although the dynamic increases significantly, the sound is not “stiff” or roughened, but still retains a good balance of bands. Of course, in terms of timbre, the speakers will tend to reproduce the structure of details accurately, so the rustic and sweet colors will be reduced. This advantage helps Focal Aria K2 936 to take on the role of any genre of music. And the “quality” of devices such as sound sources and amplifiers will be more accurately specified by the speakers. Epilogue Designed and engineered in France, the Akira K2 936 is an extremely impressive pair of column loudspeakers with two perks: owning a unique K2Power driver and painted in smoky gray with a premium finish on the top speaker line. Utopia III EVO board. These speakers aim for a modern hi-end sound philosophy, which is faithfully reproducing all genres of music with low noise, pushing performance levels beyond. In particular, these are also ideal speakers for hi-end movie rooms thanks to the advantage of reproducing 3 balanced bands with high dynamic range.

Auto-First|Liu Tianming

Following the global debut of the Lemon Hybrid DHT, Great Wall Motors’ Lemon Hybrid DHT conducted the world’s first live test live on April 15. The model tested this time is the WEY Macchiato, the first model of the Lemon Hybrid DHT.

In this live broadcast, Huang Zhenyang, Chief Engineer of Hybrid Power System of Great Wall Motors and General Manager of Lemon Hybrid DHT Development, Zhihu Professional PU Frey Liu and Navis Li were invited to participate in the actual vehicle test. In this actual vehicle test, a total of 4 interesting test items were set up, which not only presented the “fast, smooth, quiet and economical” product characteristics of the lemon hybrid DHT from multiple angles, but also demonstrated the technical value of the lemon hybrid DHT.

In the “fast” test session, the acceleration performance of the lemon hybrid DHT was tested. During the test, Frey Liu sat in the co-pilot with a balloon placed between the back and the seat. When the test-driving car was cruising steadily, the balloon remained motionless, and when the test-driving car accelerated rapidly, the balloon was instantly squeezed.

This is due to the excellent power performance of the lemon hybrid DHT. Huang Zhenyang said: “In the initial stage, electric drive is adopted. Compared with the engine, the motor can release the maximum torque at the moment of starting. There is no traditional gearbox and the transmission efficiency is very high. High, so the vehicle responds very quickly and has a strong sense of pushing back. In medium and high-speed road conditions, the system adopts engine direct drive. If a power request is received, it can achieve a downshift and acceleration effect similar to that of a fuel vehicle, not only switching from economic gear For the power transmission, the motor can participate in the output at the same time, forming a parallel mode, so that the acceleration ability can be improved.”

In the ride comfort test, after a series of operations such as starting, accelerating, and decelerating the water cup at the sunroof of the test-driving car, the juice in the water cup did not overflow. In this regard, Huang Zhenyang said, “The reason why the lemon hybrid DHT is excellent in terms of smoothness is that it has a set of modes and energy management and torque control strategies with completely independent intellectual property rights, including intelligent switching between series and direct drive modes, and no power. Interrupt shifting, intelligent clutch control, motor torque compensation matching and IGBT junction temperature estimation, etc.”.

The quiet performance of the Lemon Hybrid DH is also very outstanding. In the test “quiet”, a speaker is placed in the test drive site to simulate a noisy environment, and the test drive car circles the speaker. In the case of more than 90dB outside the car, the members in the car talk and communicate normally and keep floating in the range of 50-70dB. The overall performance is excellent, which can create a pure electric driving experience for users.

For the NVH adjustment, the hybrid 1.5L/1.5T engine used in the Lemon Hybrid DHT has been re-optimized for its overall NVH, including jitter, noise, etc., to minimize it, combined with the high-end sound insulation material of the vehicle itself Technologies such as improving NVH have greatly reduced the noise introduced into the car.

Fuel economy is the highlight of the Great Wall Lemon Hybrid DHT. In this test, WEY Macchiato conducted a 5km actual test, including starting, accelerating, braking, turning, etc. The average speed was 15km/h, and the apparent fuel consumption was 5.1L/100km.

In fact, the key to fuel-saving lemon hybrid DHT lies in its advanced dual-motor hybrid hybrid solution. Huang Zhenyang analyzed the technical principles: “In low-speed road conditions, the pure electric or series mode is used to directly drive the wheels through the motor to avoid the problem of low engine efficiency. In the medium and high-speed road conditions, it is switched to direct engine drive. It can save fuel by 10%-15% in series mode. And the direct drive of the engine has economy gear and power gear. The economy gear is used in steady state cruising. The power gear needs to be switched when accelerating, and the output is assisted by the motor to avoid transient engine load. High to achieve a perfect balance between power and fuel consumption.”

Relying on the technology accumulation of Great Wall Motors over the years, the Lemon Hybrid DHT has achieved the best power and economy in the full speed range and all scenarios, giving the product the product strength of “fast, smooth, quiet, and economical”. At the upcoming Shanghai Auto Show, WEY Macchiato equipped with this technology will be officially unveiled.